* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
}
body {
    background-color: #f5f5f5;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    color: #333;
}
.login-container {
    background: white;
    border-radius: 4px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    width: 380px;
    padding: 30px;
    text-align: center;
}
.logo {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background-color: #07C160;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
}
.logo i {
    font-size: 40px;
    color: white;
}
h2 {
    font-weight: normal;
    margin-bottom: 25px;
    color: #1a1a1a;
}
.input-group {
    margin-bottom: 15px;
    position: relative;
}
.input-group i {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: #999;
}
.input-group input {
    width: 100%;
    padding: 12px 15px 12px 40px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
    transition: border-color 0.3s;
}
.input-group input:focus {
    border-color: #07C160;
    outline: none;
}
.login-btn {
    width: 100%;
    padding: 12px;
    background-color: #07C160;
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 16px;
    cursor: pointer;
    margin-top: 10px;
    transition: background-color 0.3s;
}
.login-btn:hover {
    background-color: #06ae56;
}
.footer {
    margin-top: 20px;
    font-size: 12px;
    color: #999;
}
.agreement {
    display: flex;
    align-items: center;
    font-size: 13px;
    color: #999;
    margin-top: 15px;
    text-align: left;
}
.agreement input {
    margin-right: 5px;
}
.agreement a {
    color: #576b95;
    text-decoration: none;
}
.captcha-container {
    display: flex;
    align-items: center;
    margin-top: 15px;
}

.captcha-input {
    flex: 1;
    padding: 12px;
    border: 1px solid #ddd;
    border-right: none;
    border-radius: 4px 0 0 4px;
    background-color: #fff;
    font-size: 14px;
    transition: border-color 0.3s;
}

.captcha-input:focus {
    border-color: #07C160;
    outline: none;
}

.captcha-img {
    height: 44px;
    width: 100px;
    border-radius: 0 4px 4px 0;
    border: 1px solid #ddd;
    cursor: pointer;
    object-fit: cover;
}